20558700

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{53}}^1\times {\mathrm{431}}^1$

素因数の和:504

約数の個数: 108

約数和(自身を含む): 65808288

約数和(自身を除く): 45249588

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 53, 60, 75, 90, 100, 106, 150, 159, 180, 212, 225, 265, 300, 318, 431, 450, 477, 530, 636, 795, 862, 900, 954, 1060, 1293, 1325, 1590, 1724, 1908, 2155, 2385, 2586, 2650, 3180, 3879, 3975, 4310, 4770, 5172, 5300, 6465, 7758, 7950, 8620, 9540, 10775, 11925, 12930, 15516, 15900, 19395, 21550, 22843, 23850, 25860, 32325, 38790, 43100, 45686, 47700, 64650, 68529, 77580, 91372, 96975, 114215, 129300, 137058, 193950, 205587, 228430, 274116, 342645, 387900, 411174, 456860, 571075, 685290, 822348, 1027935, 1142150, 1370580, 1713225, 2055870, 2284300, 3426450, 4111740, 5139675, 6852900, 10279350, 20558700]

約数ペア:

[(1, 20558700), (2, 10279350), (3, 6852900), (4, 5139675), (5, 4111740), (6, 3426450), (9, 2284300), (10, 2055870), (12, 1713225), (15, 1370580), (18, 1142150), (20, 1027935), (25, 822348), (30, 685290), (36, 571075), (45, 456860), (50, 411174), (53, 387900), (60, 342645), (75, 274116), (90, 228430), (100, 205587), (106, 193950), (150, 137058), (159, 129300), (180, 114215), (212, 96975), (225, 91372), (265, 77580), (300, 68529), (318, 64650), (431, 47700), (450, 45686), (477, 43100), (530, 38790), (636, 32325), (795, 25860), (862, 23850), (900, 22843), (954, 21550), (1060, 19395), (1293, 15900), (1325, 15516), (1590, 12930), (1724, 11925), (1908, 10775), (2155, 9540), (2385, 8620), (2586, 7950), (2650, 7758), (3180, 6465), (3879, 5300), (3975, 5172), (4310, 4770)]